Where on the web is Kurt Lewin?
Wednesday, March 11th, 2009 by Courtney Timms
Kurt Lewin is credited as the founder of social psychology. Social psychology is the scientific study of how people’s thoughts, feelings, and behaviors are influenced by the actual, imagined, or implied presence of others. It may seem pretty obvious to you that Kurt’s influences can be found on sites like Facebook, LinkedIn and Twitter, but Kurt shows up on the web much more than you might think.
One of the most basic social psychology concepts is persuasion.
Persuasion is thought of as a changing of attitudes by presenting information about another attitude. Take these simple screen shots of a product on Amazon.com, without knowing it, you are being overloaded by social psychologies principles of persuasion. Kurt Lewin proposed that an analysis be undertaken in social situations in order to determine whether factors are driving behavior (buying products in this case) or hindering behaviors(bouncing from site in this case).
Length-Implies-Strength Heuristic- Lots of facts, figures and reviews are likely to produce favorable impressions that the product’s is quality is high but also to subconsciously persuade them to buy. In example number one below, Amazon.com mentions that the camera has 7.1 MP and a 3.4x optical zoom.

Balance Theory- People tend to agree with people who they like or who are like them. Balance theory is demonstrated on this page many times by showing consumers what other customers who bought this product liked and looked at, labeled 2 above.

Consensus-Implies-Correctness Heuristic- If a majority of people have the same opinion, then it must be correct. This heuristic seems to be the most popular principle of persuasion used on pages like these. 1,154 customer reviews, star ratings, review charts, 80 people even reviewed a review. Examples of Consensus-Implies-Correctness heuristic are labeled with 3’s above.
There are many more social psychology principles that can be applied all over the web to many more sites than you think. Although Kurt did not work directly with the principles of persuasion, he paved the way for basic social psychology principles to be applied in modern ways to the web.



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